Jump to content


Welcome to Ultimate Subaru Message Board, my lurker friend!

Welcome to Ultimate Subaru Message Board, an unparalleled Subaru community full of the greatest Subaru gurus and modders on the planet! We offer technical information and discussion about all things Subaru, the best and most popular all wheel drive vehicles ever created.

We offer all this information for free to everyone, even lurkers like you! All we ask in return is that you sign up and give back some of what you get out - without our awesome registered users none of this would be possible! Plus, you get way more great stuff as a member! Lurk to lose, participate to WIN*!
  • Say hello and join the conversation
  • Subscribe to topics and forums to get automatic updates
  • Get your own profile and make new friends
  • Classifieds with all sorts of Subaru goodies
  • Photo hosting in our gallery
  • Meet other cool people with cool cars
Seriously, what are you waiting for? Make your life more fulfilling and join today! You and your Subaru won't regret it, we guarantee** it.

* The joy of participation and being generally awesome constitutes winning
** Not an actual guarantee, but seriously, you probably won't regret it!

Serving the Subaru Community since May 18th, 1998!

Guest Message by DevFuse
 

Photo
- - - - -

90 legacy bizarre overheating

cooling system radiator overheating thermostat radiator fans

  • Please log in to reply
2 replies to this topic

#1 andygraham

andygraham

    Newbie

  • Members
  • Pip
  • 2 posts
  • Santa Rosa, CA

Posted 24 March 2013 - 12:10 PM

Bought a 90 legacy & discovered it had an overheating issue. Aftermarket temperature gauge (came with vehicle) reading 210 as operating temperature, but would drop to 170-190 at 50-60 mph.

 

Trouble shoot fans, both fan motors are dead.  Replaced both fans.  No change in temp. Curiously, the both fans run all the time, even at cold start up. 

 

Trouble shoot coolant, coolant is ok.

 

Trouble shoot thermostat, get OEM aftermarket brand supposedly designed to keep temp at 170.  Drained coolant and installed new thermostat, fillled with fresh coolant (but did not start at engine block..'burped' ...just filled into radiator) and temp now runs at 200. Will attempt to burp system today.

 

Is a fun car, but the cooling thing is really strange.  Any thoughts would be appreciated.


Edited by andygraham, 24 March 2013 - 12:17 PM.


#2 1 Lucky Texan

1 Lucky Texan

    I read a lot about Subarus

  • Members
  • 4,797 posts
  • Texas

Posted 24 March 2013 - 12:38 PM

good job on the t'stat but, wonder if the prev. owner has monkeyed with some relays to keep the fans on or ???



#3 Rooster2

Rooster2

    Subaru Master

  • Members
  • 3,676 posts
  • Indianapolis

Posted 24 March 2013 - 04:57 PM

bad coolant temp sensor??







Also tagged with one or more of these keywords: cooling system, radiator, overheating, thermostat, radiator fans

0 user(s) are reading this topic

0 members, 0 guests, 0 anonymous users